US PATENT SUBCLASS 417 / 337
.~ Buoyant motor

Current as of: June, 1999
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417 /   HD   PUMPS

321  DF  MOTOR DRIVEN {32}
337.~ Buoyant motor

DEFINITION

Classification: 417/337

(under subclass 321) Apparatus in which the motor has a buoyant movable working member which member is positioned in a container for liquid, said container being alternately filled and emptied so as to move the buoyant member up and down or said buoyant member being alternately filled and emptied so as to move up and down.

SEE OR SEARCH THIS CLASS, SUBCLASS:

331+, for tide or wave actuated float which drives the pump.